Added auto rotate functionality

[thexmanxyz]

Actually I just wanted to answer the question asked in #8. But it would be great to have that functionality directly in the project if someone wants to tinker around so im creating this PR. It's just trivial but why not.

[itsharryle]

@thexmanxyz Hi! Thanks for adding this feature. If you could fix the error on line 85 pointed out by parasm0802 I would be more than happy to merge this PR in. Thanks for your contribution.

[thexmanxyz]

@parasm0802 Strangely I did not get a notification email for your comment. I completely missed that compile error. Will add a commit in the next minutes to fix that compilation error. Just wrote it without checking syntax I guess. @VectStudio. Sorry for that. You can merge it in the next minutes.

[thexmanxyz]

@VectStudio You are welcome! Sorry for adding a compilation error. I now verified the sketch and added another commit which adds the missing ) bracket. I'm curious why I did not get a notification mail on August 16th for the comment from @parasm0802 not even in my mail history. But whatever it is fixed now. Thanks in advance for merging!